US691866A - Liquid-heating furnace. - Google Patents
Liquid-heating furnace. Download PDFInfo
- Publication number
- US691866A US691866A US7632901A US1901076329A US691866A US 691866 A US691866 A US 691866A US 7632901 A US7632901 A US 7632901A US 1901076329 A US1901076329 A US 1901076329A US 691866 A US691866 A US 691866A
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- US
- United States
- Prior art keywords
- liquid
- tank
- furnace
- water
- heating furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/2405—Warming devices for warming food contained in vessels immersed in a water bath, e.g. chafers or steam tables
Definitions
- This invention relates to a furnace for heating, evaporating, or concentrating infusions, solutions, and liquids generally, and relates particularly to the type of furnace in which a water-bath is employed.
- Figure 1 is a longitudinal section of the improved furnace.
- Fig. 2 is a plan.
- Fig. 3 is a cross-section.
- Fig. 4 is a detailview.
- I employ the usual or a suitable water bath or tank a.
- the water-bath a rests upon a slab b, of fire-clay or other refractory material, which forms a crown to an inclined furnace-flue or flamebed 0, constructed in the lower fire-clay portion (1.
- the tank 0t is also surrounded by fire-clay slabs e, the whole being incased by an envelop f, of thin sheet-steel, and bound together by hoops g.
- a tray it Resting on the top of the tank a and fireclay casing e is a tray it, having a number of circular recesses i to receive the metallic or other saucers containing the solution, infusion, or liquid to be concentrated or evaporated.
- the tray h is provided with an internal ledge j, fitting closely inside the tank or water-bath a to assist in preventing the escape of steam.
- a modification of this arrangement is shown in Fig. 4, in which the ledge j sits within a gutter 70, formed on the water-tank a.
- the gutter 7t being filled with water, provides an eflicient seal against the escape of steam'from the tank. Steam from the tank 0t is condensed by the coil Z,
- a drip-cock m is provided, the feedwater passing through the pipe at to the tank a, the inner pipe 0 carrying off the excess water and maintaining a constant level within the water-tank a.
- the evaporating-furnace I employ a burner generating a flame of liquid hydrocarbon and air under pressure, or it might be hydrogen gas and air.
- the burner consists of a combustion-cha1nber p, an oil or liquid-hydrocarbon drip-pipe q, supplied with oil from any suitable source, and an air-blast pipe r, through which passes air under pressure from any suitable compressing or blowing device.
- Beneath the fire-clay crown b are a number of deflecting-ribs s, by means of which the flame and hot gases are deflected so as to bring them to bear over the entire area of the fire-clay crown b on their way to the fines t t and chimney u, as shown by the arrows in Fig. 1.
- the bottom of the flame-bed farthest from the burner is gradually inclined toward the crown b, so as to concentrate the hot gases as the heat thereof diminishes, and thus maintain the equality of temperature of the fire-clay crownb as much as possible through its entire area
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Treatment Of Fiber Materials (AREA)
Description
N0. 69l,866. Patnted Jan. 28, 1902. D. LAIRD. LIQUID HEATING FURNACE.
A lication filed Sept. 24, 1901.;
2 Sheets-Sheet I.
(No Model.)
]NVENTOR gfeuwb J I u I I TNE Nomus PTERS co. gubrzmmou wpsumoruu. a. c
N0. 69l,866. Patented Jan. 28, I902.
D. LAIRD.
LIQUID HEATING FURNACE.
(Application filed Sept. 24, 1901.)
(N0 Model.) 2Shee h I 2,
uz' Ncmms warms co, vNoTuLn-nm WASHINGTON. n. c
UNITED STATES PATENT OFFICE.
DAVID .LA IRD, OF FOBFAR, SCOTLAND.
LIQUID-HEATING FURNACE.
SPECIFICATION forming part of Letters Patent No. 691,866, dated January 28, 1902.
Application filed September 24, 1901. Serial No. 76,329. (No model.) 7
T0 aZZ whom it may concern.-
Be it known that I, DAVID LAIRD, engineer and metallurgist, a subject of the King of Great Britain and Ireland, and a resident of Forfar, in the county of Forfar, Scotland, have invented a certain new and useful Improved Furnace for Heating, Evaporating, or Concentrating Infusions, Solutions, and Liquids, of which the following is a specification.
This invention relates to a furnace for heating, evaporating, or concentrating infusions, solutions, and liquids generally, and relates particularly to the type of furnace in which a water-bath is employed.
In the accompanying two sheets of drawings, Figure 1 is a longitudinal section of the improved furnace. Fig. 2 is a plan. Fig. 3 is a cross-section. Fig. 4 is a detailview.
In an evaporating-furnace constructed in accordance with my invention I employ the usual or a suitable water bath or tank a. The water-bath a rests upon a slab b, of fire-clay or other refractory material, which forms a crown to an inclined furnace-flue or flamebed 0, constructed in the lower fire-clay portion (1. The tank 0t is also surrounded by fire-clay slabs e, the whole being incased by an envelop f, of thin sheet-steel, and bound together by hoops g.
Resting on the top of the tank a and fireclay casing e is a tray it, having a number of circular recesses i to receive the metallic or other saucers containing the solution, infusion, or liquid to be concentrated or evaporated. In Figsrl to 3 the tray h is provided with an internal ledge j, fitting closely inside the tank or water-bath a to assist in preventing the escape of steam. A modification of this arrangement is shown in Fig. 4, in which the ledge j sits within a gutter 70, formed on the water-tank a. The gutter 7t, being filled with water, provides an eflicient seal against the escape of steam'from the tank. Steam from the tank 0t is condensed by the coil Z,
the water of condensation returning to the tank. To maintain the water-level within the tank, a drip-cock m is provided, the feedwater passing through the pipe at to the tank a, the inner pipe 0 carrying off the excess water and maintaining a constant level within the water-tank a.
For heating the evaporating-furnace I employ a burner generating a flame of liquid hydrocarbon and air under pressure, or it might be hydrogen gas and air. The burner consists of a combustion-cha1nber p, an oil or liquid-hydrocarbon drip-pipe q, supplied with oil from any suitable source, and an air-blast pipe r, through which passes air under pressure from any suitable compressing or blowing device. Beneath the fire-clay crown b are a number of deflecting-ribs s, by means of which the flame and hot gases are deflected so as to bring them to bear over the entire area of the fire-clay crown b on their way to the fines t t and chimney u, as shown by the arrows in Fig. 1. The bottom of the flame-bed farthest from the burner is gradually inclined toward the crown b, so as to concentrate the hot gases as the heat thereof diminishes, and thus maintain the equality of temperature of the fire-clay crownb as much as possible through its entire area.
I declare that what I claim is- In a furnace of the class described, the combination with the inclined bottom and walls, of a fire-clay crown above said bottom and encircled by said walls, a water bath or receptacle seated on said crown, a suitable cover for said receptacle, and an oil-burner discharging into the space between said bottom and crown, substantially as described.
In witness whereof I have hereunto set my hand in presence of two witnesses.
DAVID LAIRD.
Witnesses i JOSHUA ENTWISLE, RICHARD IBBERSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7632901A US691866A (en) | 1901-09-24 | 1901-09-24 | Liquid-heating furnace. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7632901A US691866A (en) | 1901-09-24 | 1901-09-24 | Liquid-heating furnace. |
Publications (1)
Publication Number | Publication Date |
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US691866A true US691866A (en) | 1902-01-28 |
Family
ID=2760405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US7632901A Expired - Lifetime US691866A (en) | 1901-09-24 | 1901-09-24 | Liquid-heating furnace. |
Country Status (1)
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US (1) | US691866A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452656A (en) * | 1943-07-17 | 1948-11-02 | Motorola Inc | Portable liquid heater |
-
1901
- 1901-09-24 US US7632901A patent/US691866A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452656A (en) * | 1943-07-17 | 1948-11-02 | Motorola Inc | Portable liquid heater |
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